The 3 GOP senators eyeing the White House stick together — again

The three Republican senators eyeing the 2016 presidential race are very different, but you wouldn't know it from their votes.When Sens. Ted Cruz of Texas, Rand Paul of Kentucky and Marco Rubio of Florida cast their votes yesterday against a deal to reopen the government, it was only the latest in a string of times they have marched in lockstep.It's an interesting trend that may signal a larger strategy by the three: By voting together, they prevent their opponents from …